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Tacoma ECU Tuning for 4.0L

Discussion in '2nd Gen. Tacomas (2005-2015)' started by OVTune, Jun 14, 2017.

Page 20 of 228
  1. Sep 15, 2017 at 5:55 PM
    #381
    Justinlhc

    #381
    Justinlhc Not looking for a relationship

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    Www.google.com
     
    Justinlhc, Sep 15, 2017
    #381
  2. Sep 15, 2017 at 5:56 PM
    #382
    dipstiktaco

    #382
    dipstiktaco Well-Known Member

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    Guess you don't work on your own vehicles or tune them ;)
    Oh well. Shut your fuel cut off and report back, willing to bet money that it makes zero difference in a back to back test?
     
    dipstiktaco, Sep 15, 2017
    #382
    EatSleepTacos and Lord Helmet like this.
  3. Sep 15, 2017 at 6:00 PM
    #383
    Justinlhc

    #383
    Justinlhc Not looking for a relationship

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    Seriously? :facepalm:

    Not ALL obd2 ecm's have decel fuel cut off. Fact. Look it up and have fun with it.

    I personally don't care if I burn a little more fuel if I bypass it. It's a feature I want and it shouldn't bother you in any way.
     
    Justinlhc, Sep 15, 2017
    #383
    Norton likes this.
  4. Sep 15, 2017 at 6:00 PM
    #384
    20RustyTaco06

    #384
    20RustyTaco06 Well-Known Member

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    Interested :drool:
     
    20RustyTaco06, Sep 15, 2017
    #384
  5. Sep 15, 2017 at 6:05 PM
    #385
    dipstiktaco

    #385
    dipstiktaco Well-Known Member

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    Just trying to say it won't make any difference in your downhill speed.

     
    dipstiktaco, Sep 15, 2017
    #385
  6. Sep 16, 2017 at 8:13 AM
    #386
    Torspd

    #386
    Torspd Tor-nication

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    Now you're just showing off. :jellydance:
     
    Torspd, Sep 16, 2017
    #386
    dipstiktaco[QUOTED] and Lord Helmet like this.
  7. Sep 16, 2017 at 9:13 AM
    #387
    Justinlhc

    #387
    Justinlhc Not looking for a relationship

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    The nice thing about the Motec is you can adjust or disable the decel fuel cut...you know, for tuning purposes. :cookiemonster:
     
    Justinlhc, Sep 16, 2017
    #387
  8. Sep 16, 2017 at 10:13 AM
    #388
    Lord Helmet

    #388
    Lord Helmet Prepare To Attack

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    Lord Helmet, Sep 16, 2017
    #388
  9. Sep 16, 2017 at 10:51 AM
    #389
    Richie Rich

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    Richie Rich Toyota Hoarder

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    Did not read the entire thread to see if someone else mentioned it. Is there a possibility of removing the "rev hang" BS that us manual transmission guys have to deal with? Not only is it annoying but it makes shifting, especially at higher RPMs a clunky, grindy deal. I know the 6 speed trans sucks anyway but I suspect rev hang makes it worse.
     
    Richie Rich, Sep 16, 2017
    #389
    TodayWasTHeDaY and wicycletester like this.
  10. Sep 16, 2017 at 12:07 PM
    #390
    TacoTRD78

    #390
    TacoTRD78 Well-Known Member

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    TacoTRD78, Sep 16, 2017
    #390
  11. Sep 16, 2017 at 5:42 PM
    #391
    Justinlhc

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    Justinlhc Not looking for a relationship

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    :drevil:

    IMG_3869.jpg
     
    Justinlhc, Sep 16, 2017
    #391
  12. Sep 16, 2017 at 5:44 PM
    #392
    Justinlhc

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    Justinlhc Not looking for a relationship

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    Don't ask questions about features you want here. People will get angry and tell you how foolish your ideas are. :laugh:
     
    Justinlhc, Sep 16, 2017
    #392
  13. Sep 16, 2017 at 7:32 PM
    #393
    Lord Helmet

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    Lord Helmet Prepare To Attack

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    Lord Helmet, Sep 16, 2017
    #393
  14. Sep 17, 2017 at 8:45 AM
    #394
    BillDaCat8

    #394
    BillDaCat8 Well-Known Member

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    Yes! Myself and a few others have mentioned this before as well. It's pretty much my biggest complaint about driving this truck. Please, please, PLEASE Mat! Can we fix this?
     
    BillDaCat8, Sep 17, 2017
    #394
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  15. Sep 17, 2017 at 10:41 AM
    #395
    Justinlhc

    #395
    Justinlhc Not looking for a relationship

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    @OVTune
    I'm sure you're more aware of the numerous complaints about the DFCO, but here are a few posts I dug up from others who dislike the feature and would like an option to bypass it.
    https://www.tacomaworld.com/threads/unwanted-deceleration-drag.464750/
    https://www.tacomaworld.com/threads/friction-when-coasting-2008-dc-trd.12993/
    https://www.tacomaworld.com/threads/2003-tacoma-pre-runner-not-coasting-well.423773/
    https://www.tacomaworld.com/threads/does-your-2nd-gen-tacoma-resist-coasting-while-in-gear.29400/
    https://www.tacomaworld.com/threads/auto-transmission-slowing-truck-down.42525/
    https://www.tacomaworld.com/threads/2009s-do-you-have-engine-braking-going-down-hills.35707/
     
    Justinlhc, Sep 17, 2017
    #395
    desertrunner24 likes this.
  16. Sep 17, 2017 at 2:29 PM
    #396
    PapaBear

    #396
    PapaBear Never test how deep the water is with both feet.

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    TBH, probably not going to get "fixed". There's obviously many reasons to have engine braking, what do you not like about it?
    Also, that's a first gen thread... https://www.tacomaworld.com/threads/2003-tacoma-pre-runner-not-coasting-well.423773/
    Different engine, different tranny.
     
    PapaBear, Sep 17, 2017
    #396
  17. Sep 17, 2017 at 3:50 PM
    #397
    Justinlhc

    #397
    Justinlhc Not looking for a relationship

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    Reasons were previously stated and stated multiple times from other drivers in the threads I posted links to. 1gen, 2gen, 3gen, doesn't really matter. Same complaint from drivers. Almost every other aftermarket standalone unit has the option so it doesn't seem like a rare request.
     
    Justinlhc, Sep 17, 2017
    #397
  18. Sep 17, 2017 at 6:46 PM
    #398
    OVTune

    #398
    OVTune [OP] Well-Known Member

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    OVTune
    Disabling DFCO can be dangerous. Due to electronic throttlebodies being used to also control idle, they never fully close (most are open at least 10-15% all the time), the truck will inadvertently drive itself.
     
    OVTune, Sep 17, 2017
    #398
    Torspd and PapaBear like this.
  19. Sep 17, 2017 at 7:09 PM
    #399
    Justinlhc

    #399
    Justinlhc Not looking for a relationship

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    lol really? I wonder why all the full standalone units have the feature? It's also useful in tuning since having the injectors shut down during tuning would be a pita. Oh well, I tried. :notsure:
     
    Justinlhc, Sep 17, 2017
    #399
  20. Sep 17, 2017 at 7:11 PM
    #400
    OVTune

    #400
    OVTune [OP] Well-Known Member

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    OVTune
    Standalones usually aren't for street vehicles.
    From what we have tested on other cars with drive by wire, when you disable DCFO (so the car still gets fuel when you're off throttle) it will coast down a lot slower, and as you get lower in rpm the car will start to drive on it's own. It will eventually decel to what would be normal moving with no throttle applied, but during the time it is, it is driving along the way.

    Hopefully that makes sense?
     
    OVTune, Sep 17, 2017
    #400
    Aw9d likes this.
Page 20 of 228

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